/* ============================================================
   RangeFury Auth — auth.css (Login & Register)
   Version: 1.3
   Paleta: #F5BF5D | #EB5FA8 | #0d0d0d | #25244A | #51277B
   Tipografía: Syne (display) + DM Sans (body)
   ============================================================ */

/* --- CSS Variables ---------------------------------------- */
:root {
    --color-action:         #F5BF5D;
    --color-interaction:    #EB5FA8;
    --color-base:           #0d0d0d;
    --color-surface:        #25244A;
    --color-surface-2:      #1e1d3d;
    --color-border:         #51277B;
    --color-border-subtle:  rgba(81, 39, 123, 0.45);
    --color-text-primary:   #ffffff;
    --color-text-secondary: #9a9a9a;
    --color-error:          #f87171;
    --color-success:        #4ade80;

    --font-display: 'Barlow', sans-serif;
    --font-body:    'Barlow', sans-serif;

    --radius-sm:  10px;
    --radius-md:  12px;
    --radius-lg:  14px;
    --radius-xl:  20px;

    --blur-glass:     16px;
    --transition-base: 0.25s ease;
}

/* --- Reset & Base ----------------------------------------- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    background-color: #0d0d0d;
    background-image:
        radial-gradient(ellipse 80% 50% at 15% 10%,  rgba(81, 39, 123, 0.50) 0%, transparent 60%),
        radial-gradient(ellipse 60% 40% at 85% 5%,   rgba(245, 191, 93, 0.12) 0%, transparent 55%),
        radial-gradient(ellipse 70% 55% at 90% 90%,  rgba(235, 95, 168, 0.22) 0%, transparent 60%),
        radial-gradient(ellipse 50% 40% at 10% 85%,  rgba(37, 36, 74, 0.65)   0%, transparent 55%),
        radial-gradient(ellipse 100% 80% at 50% 50%, rgba(13, 13, 13, 0.95)   0%, transparent 100%);
    color: var(--color-text-primary);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

img { display: block; max-width: 100%; }
a   { color: inherit; text-decoration: none; }

/* --- Noise Overlay ---------------------------------------- */
.noise-overlay {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    opacity: 0.04;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
    background-repeat: repeat;
    background-size: 220px 220px;
}

/* --- Auth Page Layout ------------------------------------- */
.auth-page {
    position: relative;
    z-index: 1;
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 16px;
    min-height: 100vh;
}

/* Top nav bar (back link + logo) */
.auth-nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 200;
    height: 60px;
    padding: 0 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(13, 13, 13, 0.75);
    backdrop-filter: blur(var(--blur-glass));
    -webkit-backdrop-filter: blur(var(--blur-glass));
    border-bottom: 1px solid var(--color-border-subtle);
}

.auth-nav-logo {
    height: 32px;
    width: auto;
    display: block;
    object-fit: contain;
}

.auth-nav-back {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-family: var(--font-body);
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: color var(--transition-base);
}

.auth-nav-back:hover { color: var(--color-action); }

/* Glow behind card */
.auth-glow {
    position: fixed;
    top: 50%; left: 50%;
    transform: translate(-50%, -55%);
    width: 640px;
    height: 420px;
    background: radial-gradient(ellipse at center,
        rgba(81, 39, 123, 0.30) 0%,
        rgba(245, 191, 93, 0.06) 50%,
        transparent 70%);
    pointer-events: none;
    z-index: 0;
}

/* --- Auth Card -------------------------------------------- */
.auth-card {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 460px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: 40px 36px 36px;
    display: flex;
    flex-direction: column;
    gap: 28px;
    box-shadow: 0 24px 64px rgba(0,0,0,0.5), 0 4px 20px rgba(81, 39, 123, 0.18);
}

/* Top accent line */
.auth-card::before {
    content: '';
    position: absolute;
    top: 0; left: 12%; right: 12%;
    height: 1.5px;
    background: linear-gradient(90deg, transparent, var(--color-action), var(--color-interaction), transparent);
    border-radius: 100px;
}

/* --- Card Header ------------------------------------------ */
.auth-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    text-align: center;
}

.auth-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    background: rgba(245, 191, 93, 0.10);
    border: 1px solid rgba(245, 191, 93, 0.28);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    line-height: 1;
    margin-bottom: 4px;
}

.auth-title {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 26px;
    color: var(--color-text-primary);
    letter-spacing: -0.6px;
    line-height: 1.1;
}

.auth-title .highlight { color: var(--color-action); }

.auth-subtitle {
    font-family: var(--font-body);
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.6;
    max-width: 320px;
}

/* --- Form ------------------------------------------------- */
.auth-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 7px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.form-label {
    font-family: var(--font-body);
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text-secondary);
    letter-spacing: 0.2px;
}

.form-label .required {
    color: var(--color-interaction);
    margin-left: 3px;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 14px;
    font-size: 15px;
    line-height: 1;
    pointer-events: none;
    user-select: none;
    opacity: 0.6;
}

.form-input {
    width: 100%;
    padding: 13px 14px 13px 42px;
    background: rgba(13, 13, 13, 0.55);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 14px;
    color: var(--color-text-primary);
    outline: none;
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
    -webkit-appearance: none;
    appearance: none;
}

.form-input::placeholder { color: rgba(255,255,255,0.22); }

.form-input:focus {
    border-color: var(--color-action);
    box-shadow: 0 0 0 3px rgba(245, 191, 93, 0.12);
}

.form-input.no-icon {
    padding-left: 14px;
}

/* Password toggle button */
.toggle-pw {
    position: absolute;
    right: 13px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 15px;
    line-height: 1;
    color: var(--color-text-secondary);
    padding: 4px;
    transition: color var(--transition-base);
    user-select: none;
}

.toggle-pw:hover { color: var(--color-action); }

/* Form helper text */
.form-hint {
    font-family: var(--font-body);
    font-size: 12px;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

/* Error message */
.form-error {
    font-family: var(--font-body);
    font-size: 12px;
    color: var(--color-error);
    display: none;
}

.form-group.has-error .form-input {
    border-color: var(--color-error);
    box-shadow: 0 0 0 3px rgba(248, 113, 113, 0.12);
}

.form-group.has-error .form-error { display: block; }

/* Select */
.form-select {
    width: 100%;
    padding: 13px 38px 13px 42px;
    background: rgba(13, 13, 13, 0.55);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 14px;
    color: var(--color-text-primary);
    outline: none;
    cursor: pointer;
    transition: border-color var(--transition-base);
    -webkit-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%239a9a9a' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
}

.form-select:focus {
    border-color: var(--color-action);
    box-shadow: 0 0 0 3px rgba(245, 191, 93, 0.12);
}

.form-select option {
    background: #25244A;
    color: #fff;
}

/* Checkbox */
.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 11px;
}

.form-checkbox {
    width: 18px;
    height: 18px;
    border-radius: 5px;
    border: 1.5px solid var(--color-border);
    background: transparent;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    flex-shrink: 0;
    margin-top: 2px;
    position: relative;
    transition: background-color var(--transition-base), border-color var(--transition-base);
}

.form-checkbox:checked {
    background: var(--color-action);
    border-color: var(--color-action);
}

.form-checkbox:checked::after {
    content: '';
    position: absolute;
    top: 2px; left: 5px;
    width: 5px; height: 9px;
    border: 2px solid #0d0d0d;
    border-top: none;
    border-left: none;
    transform: rotate(45deg);
}

.checkbox-label {
    font-family: var(--font-body);
    font-size: 13px;
    color: var(--color-text-secondary);
    line-height: 1.55;
    cursor: pointer;
}

.checkbox-label a {
    color: var(--color-action);
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: color var(--transition-base);
}

.checkbox-label a:hover { color: var(--color-interaction); }

/* Forgot password link */
.forgot-link {
    font-family: var(--font-body);
    font-size: 13px;
    color: var(--color-text-secondary);
    text-align: right;
    transition: color var(--transition-base);
    align-self: flex-end;
    margin-top: -10px;
}

.forgot-link:hover { color: var(--color-action); }

/* --- Submit Button ---------------------------------------- */
.btn-submit {
    width: 100%;
    padding: 15px 24px;
    background: var(--color-action);
    color: #0d0d0d;
    border: none;
    border-radius: var(--radius-sm);
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 15px;
    letter-spacing: 0.3px;
    cursor: pointer;
    transition: background-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-submit:hover {
    background: var(--color-interaction);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(235, 95, 168, 0.28);
}

.btn-submit:active { transform: translateY(0); }

/* --- Divider --------------------------------------------- */
.auth-divider {
    display: flex;
    align-items: center;
    gap: 12px;
}

.auth-divider-line {
    flex: 1;
    height: 1px;
    background: var(--color-border-subtle);
}

.auth-divider-text {
    font-family: var(--font-body);
    font-size: 12px;
    color: var(--color-text-secondary);
    white-space: nowrap;
}

/* --- Footer link (switch between login/register) ---------- */
.auth-footer-link {
    text-align: center;
    font-family: var(--font-body);
    font-size: 14px;
    color: var(--color-text-secondary);
}

.auth-footer-link a {
    color: var(--color-action);
    font-weight: 600;
    transition: color var(--transition-base);
}

.auth-footer-link a:hover { color: var(--color-interaction); }

/* --- Password strength bar -------------------------------- */
.pw-strength {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-top: -4px;
}

.pw-strength-bars {
    display: flex;
    gap: 5px;
}

.pw-bar {
    flex: 1;
    height: 3px;
    border-radius: 100px;
    background: rgba(255,255,255,0.10);
    transition: background-color 0.3s ease;
}

.pw-bar.active-weak   { background: var(--color-error); }
.pw-bar.active-medium { background: var(--color-action); }
.pw-bar.active-strong { background: var(--color-success); }

.pw-strength-label {
    font-family: var(--font-body);
    font-size: 12px;
    color: var(--color-text-secondary);
}

/* --- Step indicator (registro) ---------------------------- */
.steps-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: -8px;
}

.step-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-border);
    transition: background-color var(--transition-base), transform var(--transition-base);
}

.step-dot.active {
    background: var(--color-action);
    transform: scale(1.3);
}

.step-dot.done { background: var(--color-success); }

/* --- Responsive ------------------------------------------- */
@media (max-width: 520px) {
    .auth-card {
        padding: 32px 20px 28px;
        border-radius: var(--radius-lg);
        margin-top: 70px;
        margin-bottom: 20px;
    }

    .auth-title { font-size: 22px; }

    .form-row {
        grid-template-columns: 1fr;
        gap: 18px;
    }
}

@media (max-width: 390px) {
    .auth-card { padding: 28px 16px 24px; }
    .auth-title { font-size: 20px; }
    .btn-submit { font-size: 14px; padding: 13px; }
}